Browse > Article
http://dx.doi.org/10.5139/JKSAS.2010.38.9.943

A Study on Partial Admission Characteristics of a Multi-Stage Small-Scaled Turbine  

Cho, Chong-Hyun (경상대학교 항공공학과 대학원)
Jeong, Woo-Chun (경상대학교 항공공학과 대학원)
Kim, Chae-Sil (창원대학교 기계공학과)
Cho, Soo-Yong (경상대 항공기부품기술연구센터)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.38, no.9, 2010 , pp. 943-954 More about this Journal
Abstract
In this study, a radial inflow type turbine was applied and the outer diameter of the turbine rotor was 108 mm. The turbine blade on a circular plate disc was designed as an axial-type because its partial admission rate was 1.4-4.1%. The turbine consisted of three stages. The performance test has been conducted with various admission rates, tip clearances and nozzle flow angles. The turbine output power was measured on each stage. The turbine performance was obtained in a wide rotational speed range in order to compare its performance according to various operating conditions. The net specific output torque was also measured to compare its overall performance. Computational analysis was conducted for predicting turbine performance. The computed results were in good agreement with the experimental results.
Keywords
Partial Admission Turbine; Micro Turbine; Radial-Type Turbine; Turbine Performance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Skopec, J., Vomela, L., Tajc, L. and Polansky, J., "Partial Steam Admission in an Axial Turbine Stage", IMechE Int. Conf. on Third European Conference on Turbomachinery’ 99, Conference Transactions, C557/077/99, 1999, pp. 681-691.
2 Epstein, A. H., "Millimeter-Scale, Micro-Electro-Mechanical Systems Gas Turbine Engines," J. of Engineering for Gas Turbine and Power, Vol. 125, 2004, pp. 205-226.
3 Peirs, J., Reynaerts, D. and Verplaetsen, P., "Development of an Axial Micro Turbine for a Portable Gas Turbine Generator", J. of Micromechanics and Microengineering, Vol. 13, 2003, pp. 190-195.   DOI   ScienceOn
4 Isomura, K., Tanaka, S., Kanebako, H., Murayama, M., Saji, N., Sato, F. and Esashi, M., "Development of Micromachine Gas Turbine for Portable Power Generation", JSME int. J., Series B, Vol. 47, No. 3, 2004, pp. 459-464.   DOI   ScienceOn
5 Kang, S., Johnston, J. P., Arima, T., Matsuaga, M., Tsuru, H. and Printz, F. B., "Microscale Radial-Flow Compressor Impeller Made of Silicon Nitride: Manufacturing and Performance", J. of Engineering for Gas Turbine and Power, Vol. 125, 2004, pp. 358-365.
6 Cho, C. H., Cho, T. H. and Cho, S. Y., "Performance Characteristics of a Small-Scale Axial-Type Turbine Operated in a Low Partial Admission Rate", Int. J. of Turbo and Jet Engines, Vol. 23, 2006, pp. 211-221.   DOI   ScienceOn
7 Goldman, L. J. and Scullin, V. J., "Analytical Investigation of Supersonic Turbomachinery Blading I-Computer Program for Blading Design", NASA TN D-4421, 1968.
8 조종현, 조봉수, 최상규, 조수용, “부분분사에서 작동하는 소형터빈에서 두 번째 단의 효과에 관한 연구”, 한국항공우주학회지, 제36권 제9호, 2008, pp. 898-906.   과학기술학회마을   DOI   ScienceOn
9 Boulbin, F., Hetet, J. F. and Chesse, P., "Non-steady Flow in the Partial Admission", VDI Berichte NR, Vol. 1109, 1994, pp. 395-401.
10 Bohn, D., Gier, J., and Ziemann, M., "Influence of the Cross-Over Channel Geometry on the Flow Equalization in Partial-Admission Turbines", VGB Power Tech, Vol. 2, 1998, pp. 49-54.
11 CFX-11, 2007, version 11.
12 Robert, C. K., Howard, Z. H. and Warren, J. W., "Effects of Partial Admission on Performance of a Gas Turbine", NACA Technical Note No. 1807, 1949.
13 Yahya, S. M., "Some Tests on Partial Admission Turbine Cascades", Int. J. Mech. Sci. 1969, Vol. 11, pp. 853-866.   DOI   ScienceOn
14 Yahya, S. M., "Partial Admission Turbines and Their Problems," Bull. Mech. Engineering Education, Vol. 9, 1970, pp. 263-273.
15 Doyle, D. C., "Theories for Predicting Partial Admission Losses in Turbine", J. of the Aerospace Science, April, 1962, pp. 489-490.
16 S. Y., Cho, C. H. and Kim, C., "Performance Prediction on a Partially Admitted Small Axial-Type Turbine", 2006, JSME international J. Series B, Vol. 49, No. 4 pp. 1290-1297.   DOI   ScienceOn
17 Menter F. R, “Two-Equation Eddy-Viscosity Turbulence Models for Engineering Applications”, AIAA Journal Vol. 32, No. 8, 1994, pp. 1598-1605.   DOI   ScienceOn